Oil burner



G. F. RAYMOND.

OIL BURNER.

APPLICATION FILED DEC- 6. 1920.

Patented Jan. 17, 1922.

UNITED s TArgE-s PATENT ortica.

GEORGE F. RAYMOND, OF JACKSON, MICHIGAN.

oirJ BURNER..

Application led December 6, 1920. Serial No. 428,501.

To all fw from t may concern Be it known that I, GEORGE F. RAYMOND, a citizen of the United States ofAmerica, residingat Jackson, in the county of Jackson and State of Michigan, have invented certain new and useful Improvements 1n Oil Burners7 of which the followmgis a specification, reference being had therein to the accompanying drawings.

This invention relates to Oil burners. It is particularly well adapted to burn kerosene but is capable of burning any fuel oil adapted to be converted into a gas by the application of heat.

It is the purpose of the invention to provide a `burner of the character indicated which will be of a very simple and economical construction; will be susceptible of easy and accurate control and will" not be rendered inoperative by reason ofcarbonization.

A Yfurther object ofthe invention is to providea burnerin which the parts are-so combined that any carbon deposits from the oil will bev depositedadjacent a clean-ont opening through which they may bek discharged under. the iniiuence of the-,burner pressure itselfA and without disassembly of the burner as a whole. y

Further objects and advantages of the invention will be set forth in the detailed description which now follows:

In the accompanying drawing:

Figure 1 is a perspective vieuT of a burner constructed iii-accordance with the invention' Fig. 2 is a verticalsectional view therethrough; and y Fig. 3 is a vertical section at right angles to that of Fig. 2 through a cross coupling hereinafter described.

Like numerals designate corresponding parts throughout the several lfigures of the drawing. Y

The fuel oil from a tank (not shown) or other source of supply passes through a pipe 5 into the interior of a retort 6. The pipe 5 is extended to a point near the front or free end of the retort where it terminates, leaving a chamber 7 between its end and the extremity of the retort. opening 8 which may be closed byany suitable closure, such as a plug 9, provides desired.

A clean-out` means for discharging from the chamber 7 the carbon formed therein as the oil changes from a liquid to a gas. Ascreen 10 spans the retort 6 and a body of non-combustible material. 11 fills the space rearwardly of the screen 10. It will be observed that the fuel is caused to reverse its direction of movement at the point where it is desired to deposit the carbon. freed therefrom. Where the flow of fuel is continuously in one direction the carbon deposits are scattered along the entire path of the fuel and thus the average burner is caused to carbonize within avery short time and become useless. VBy reversingthe direction of the fuel at Vthe point where Vthe fuel beginsfto change from` a liquid to a gas, thedeposit of the carbon at that point is facilitated and the provision Vof a clean-ont Aopening adjacent this point' renders it possible to blow theY accumulated carbon vout ofthcY openingS` by Vmerely removing the plug@ "or otherwise freeing said outlet opening. Y l

'.Fherear'end of the retort6 may comprise a removableplug 12 to permit ofthe insertion or removal ofthe material 11vas The gas passes. from the-chamber 7 rearwardly through the material. 11 and istiltered` and cleansed by the material 11 which may be mineral wool, asbestos, "gravelv or any other suitableporous and non-combustible matterl The gas passes from the retort 6 through a pipe 13 which leads from a point adjacent the rear end of the retort to a cross coupling 1-1. The coupling 14 is divided by a division wall 15 into two separate ports 16 and 17. The port 16 establishes `communication between the lower end of the pipe 13 and one end of a ring or coil pipe 1S, while vthe port 17 establishes vcommunication between the other end kof the ring or coilfpipe 18, and agdischarge Vpipe 19 which leads to a nozzle 20, A control- Aling valve 21 of Vany usual and conventional form serves to control the flow of gas from the V.pipe119 to` the VVnozzle 20, and thus the flames may be turned up or turned down at will.

The `ilow of gas is as indicated -by lthe arrows, that is the gasV Hows from pipe 13 into one end of the ring pipe 18 and flows through the ring pipe and enters the coupling 11i again through the port l?. It passes through this `port and is discharged through pipe if) into the burner proper.

For convenience of illustration, I have illustrated this burner as consisting of a pair of spaced plates 22 and 23 held in their spaced relation by bolts 2li and supporting between thema gauze or wire mesh surface 25 of flame resisting material. The lower plate 22 carries a mixing tube 26 and the gas discharged from the nozzle 2O together with the airl drawn through the mining tube 2G are discharged against the under side of the plate 23 and spread outwardly in a usual and known way.

It is to be understood that the invention is not limited to the particular type of burner shown. The burner proper comprising the plates 22 and 23 and the gauze 25 have been' illustrated in the accompanying drawing merely to show the relationship of the retort and the remaining elements to a burner. An ordinary flat plate burner or an ordinary casting aving slits cut therein, in a manner well known in the art, could be substituted for the particular spaced plates and gauze herein shown and described, without departure from the invention, the invention residing-more particularly in the retort and ring pipe and the association of these two with a burner than in any particular kind of a burner. It will be observed that while the ring pipe `18 is i disposed within the zone of heat ,fromV the burner it is not disposed directly in thepath of the flament This prevents the rapid burning out of this pipe. The particular location of this pipe with respect tothe height of the burner is a matter of choice. I prefer, however, to locate the ring pipe as shown, Furthermore, it is manifest that the ring pipe or coil 18 may be given moreV thangone turn about the burner (without departure from the basic Aprinciple involved.

From the foregoing description it will be seen that a burner constructed in accordance with the present invention comprises but a few very simple and inexpensive parts and that consequently it may be very economically manufactured. It will also be seen that theready cleansing of the burner is provided for and the carrying of carbona-V ceous particles throughout the path .of the fuel `is prevented and that consequently the carbonization of the burner is avoided.V Furthermore by disposing the ring pipe as shown, asuicient body of heated gas is maintained even though the Vburner be turned low, to provide for the ready starting of the burner when more heat is 'again desired. y

It is to 'be understood that the invention is not limited to the precise construction set forth but that it includes within its pur view whatever changes fairly come within either the terms or the spirit of the appended claims.

Having described my'invention, what I claim is:

l. In combination a retort Vconsisting of an elongated body, a fuel supply pipe ex'- tending longitudinally therethrough and terminating short of the front end thereof, a clean-out opening` atthe front end of the retort, a. discharge pipe leading from the retort adjacent'the rear end thereof and a. body of porous noncombustible material disposed. within the retort about the fuel supply pipe, all of said material lying rearwardly of thefront end of said fuel supply pipeleaving a free space between said material and the clean-out plug.

' 2. A structure as recited in claim 1 in combination with a ring pipe, a burner about which said ringpipe extends'and over which the' retort isl disposed, means for establish- 'ing communication between the discharge pipe and one end Vof the ringA pipe, means forestablishing communication between the other'end of the ring pipe and a second dis-y charge pipe and a nozzle to whichv the second discharge pipe leads.

3. In combination'aburner, a'gas supply nozzle associatedtherewith, a pipeleading to said gas supply nozzle, a coupling through which said pipe leads, a ring'pipe extending` around said burner and connectedto said coupling, said couplingwestablishing communication between one end of said ring pipe and the first named pipe, a retort comprising an elongated body overlyingmthe burner and havingv a discharge ,pipe leading therefrom adjacent its rear end and communicating with' said coupling, said coupling establishing communication between said last named pipe and the other end of the ring pipe, a fuel pipe extending longitudinally through the retort and terminating adjacent the front end thereof, abody of porous,non-combustible material in the retort rearwardly of the front end ofv the fuel supply pipe, a cleanfout opening formed in the front end of the retort and a closure for said opening. Y

In testimony whereof I hereunto aiiix my signature; Y Y 

